Untangling a Sublease Chain Before a Clinic Platform Deal Closed

The situation

Thirty-eight million dollars was the value assigned, within a larger platform transaction, to the tranche of physiotherapy clinics that included the Thorold location Ratana and Somchai had built over almost twenty years. The buyer, a private equity-backed platform assembling physiotherapy clinics across southern Ontario, was represented in negotiations by Enzo, the platform's operating partner, who had identified the Thorold clinic as one of the stronger anchor locations in the portfolio it wanted to acquire.

Enzo had grown the platform quickly, closing on a dozen smaller clinics in the preceding two years, and understood the operational side of the business better than almost anyone we had worked with. English was not the language he had grown up speaking, though, and while he managed day-to-day negotiations comfortably, the dense, technical language of real property law, the kind found in decades-old commercial leases and their assignment provisions, was a different matter entirely. From our first meeting, we worked with an interpreter for the more technical review sessions, translating not just the words in the lease documents but the practical consequences behind them, so Enzo could make decisions with the same understanding any of our English-speaking clients would have.

Ratana and Somchai, the clinic's owners, had a straightforward goal: sell the practice they had spent two decades building and retire from active practice, while staying on in a reduced clinical role for a transition period the buyer wanted. The purchase price for their location alone, carved out of the larger platform valuation, sat comfortably within a fair multiple of the clinic's earnings, and both sides expected the deal to close within a couple of months of signing.

What nobody on either side had fully appreciated, until our real estate diligence team pulled the actual chain of title to the premises, was that Ratana and Somchai did not hold their space under a straightforward lease from the building's landlord. They held it under a sublease, itself granted by a tenant that had taken the space under a master lease years earlier, and that master tenant had, in turn, sublet a portion of its own space to a separate practitioner who was still operating out of part of the premises. Untangling who actually had the right to consent to a transfer of the space to Enzo's platform turned out to be its own transaction within the transaction.

The legal problem

Commercial leases typically restrict assignment or subletting without the landlord's consent, and for good reason: a landlord wants to know and approve who is actually occupying its building and paying rent. When a tenant grants a sublease, and that subtenant in turn grants a further sublease of its own, each layer in the chain usually needs to trace its right to do so back to the original lease, and each transfer along the way should, in a properly run building, have been consented to by the landlord at the time.

Here, that had not happened cleanly. The original master lease, between the building's landlord and the tenant who first occupied the space, contained the usual restriction on subletting without consent. When that master tenant sublet part of the space to Ratana and Somchai's clinic years earlier, the paperwork on file suggested the landlord had been notified but showed no clear record of formal written consent, the kind the master lease itself required. Years after that, the master tenant sublet a further, smaller portion of the same premises to another practitioner, again without documentation confirming the landlord had consented.

For Enzo's platform, buying the clinic meant more than buying Ratana and Somchai's operating business. It meant taking an assignment of their occupancy rights to the physical space the clinic operated from, since relocating an established clinic with a loyal patient base was not something the buyer wanted to risk. But assigning a sublease that may never have been properly consented to in the first place raises an uncomfortable question: does the tenant actually hold an enforceable right to occupy at all, or could the landlord, strictly speaking, treat the original sublease as a breach of the master lease and take steps to end the arrangement?

In practice, landlords rarely move to terminate a long-standing tenancy where rent has been paid reliably for years, particularly where doing so would leave a healthcare practice's patients without continuity of care. But rarely is not the same as never, and a buyer investing tens of millions of dollars in a platform built partly around this location needed more certainty than a landlord's historical goodwill. There was also the further sublease to the other practitioner to resolve: any assignment to the new buyer needed to address whether that arrangement would continue, on what terms, and under whose lease going forward, since it directly affected how much of the premises the clinic itself would actually control after closing.

What we did

1. Traced the full chain of title to the premises, from the original master lease through both subleases, requesting copies of every assignment, consent, and notice on file with the landlord, the master tenant, and Ratana and Somchai themselves. We did this before drafting a single clause of the assignment documents, because proposing a fix without first knowing exactly where each consent was missing risked solving the wrong problem and leaving a real gap unaddressed at closing.
2. Approached the landlord directly, ahead of closing, to request a formal, current consent to the transfer, rather than waiting for the landlord to raise the issue on its own timeline. We used the request as an opportunity to also regularize the historical gaps in writing, so the platform would not simply inherit decades of undocumented informality as the price of a quick signature.
3. Negotiated a landlord estoppel and consent agreement confirming the lease chain was in good standing, that no default existed, and that the landlord consented to the assignment to the buyer's operating entity. This mattered because an estoppel certificate binds the landlord to the facts it states, converting an uncertain historical position that a future dispute could reopen into a clean, current record everyone could rely on.
4. Worked out terms for the sub-subtenant practitioner's continued occupancy, negotiating a new, properly documented sublease directly between that practitioner and the buyer's entity. Leaving that arrangement undocumented would have meant the buyer controlled less of the premises than the purchase price assumed, so putting real paperwork behind years of informal practice protected the value the platform was actually paying for.
5. Explained each stage of the process to Enzo in plain language through an interpreter, walking through what a landlord consent actually protects against and why an informal, long-standing arrangement was not the same as a documented one. Because Enzo was the one deciding how much delay and cost the platform should accept, he needed to understand the reasoning itself, not just a translated summary of our recommendation.
6. Adjusted the purchase price allocation for the Thorold location to reflect a modest holdback tied to final landlord sign-off, protecting the buyer if consent negotiations ran past the closing date. Structuring the holdback this way meant the broader platform transaction could still close on schedule for the other clinics involved, rather than holding the entire deal hostage to one location's real estate issue.
7. Coordinated timing with Ratana and Somchai's own counsel so their transition into reduced clinical roles under the new ownership was not delayed by the real estate issue. Keeping the operational handover on its planned schedule mattered to patient continuity at the clinic and to Ratana and Somchai's own plans for retirement, even while the lease chain itself was still being worked out behind the scenes on a separate track.

The outcome

The landlord ultimately agreed to formalize consent for the full chain, current and historical, in exchange for a modest increase in future rent and an updated tenant estoppel process for the building going forward. That resolved the core risk: the buyer's platform now holds a clean, documented right to occupy the Thorold premises, and the sub-subtenant practitioner operates under a proper sublease rather than an informal arrangement nobody had ever written down.

It was not a costless fix. The rent increase the landlord negotiated in exchange for its cooperation added a modest but real amount to the platform's ongoing occupancy costs at that location, and the purchase price holdback meant Ratana and Somchai received a portion of their proceeds several weeks later than the rest of the platform transaction closed. Both concessions reflected a genuine compromise: the landlord had real leverage, since it could have made the consent process far more difficult, and the buyer needed the certainty enough to pay for it rather than risk relocating an established clinic.

For Enzo, the file became a template. His platform has since adopted a standard practice of tracing lease chains fully, and requesting current landlord consent in writing, before agreeing on price for any future clinic acquisition, rather than discovering a sublease chain's gaps during diligence on a deal already under signed agreement. Ratana and Somchai completed their transition into reduced clinical roles on the timeline they had originally hoped for, the real estate delay having affected only the payment schedule, not the operational handover itself.

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